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To preserve, enhance, and restore the quality of California’s water resources and drinking water for the protection of the environment, public health, and all beneficial uses, and to ensure proper water resource allocation and efficient use, for the benefit of present and future generations

California State Water Resources Control Board

This data provides results from chemistry and field analyses, from the
California Environmental Data Exchange Network (CEDEN).
The data set contains two provisionally assigned values (“DataQuality”
and “DataQualityIndicator”) to help users...

This data set provides results of tissue from organisms found in surface
waters, from the California Environmental Data Exchange Network (CEDEN). The
data are of tissue from individual organisms and of composite samples where
tissue samples from...